Magnus Ductile Iron Engine Sleeves for McLaren 4.0L V8 Catback Unlike most aftermarket rails on

Unlike most aftermarket rails on the market

PTE 5931 Turbo Options:

17L BC stroker kit for the Subaru WRX EJ20 engine platform incorporates a stock 75mm stroke crank and H-Beam or I-Beam rods

and ultra-responsive needle movement in a 3-3/8" in-dash design compatible with 1-4 pulse ignition signals

Magnus Ductile Iron Engine Sleeves for McLaren 4.0L V8 Catback Unlike most aftermarket rails onMagnus Motorsports McLaren 4. 0L ductile iron engine sleeves help resist deformation under high boost and high combustion loads. Sold as a full set of 8 sleeves. Vehicle Fitment: McLaren 3. 8L & 4. 0L V8 Twin Turbo M838T: 625C, 650S, 675LT, MP4 12C, MSO 688 HS M838TE: 540C, 570S, 570GT, 600LT, 620R M840T: 720S, 750S, 765LT, Senna, Elva, Speedtail, Sabre M840TE: GT, GTS 4. 0L Replacement: These sleeves are a drop in upgrade for the 4. 0L M840T and